
.modifyBox{
    text-align: center;
    height: 200px;
    width: 400px;
    margin: 50px auto 20px;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 1px solid black;
    border-radius: 0.5em;
}
.modifyBox .item{
    margin-top: 30px;
    margin-left: 0;
}
.modifyBox label{
    margin-left: 70px;
    line-height:22px;

}
.modifyBox input{
    float: right;
    margin-right: 20px;
    width: 200px;
    height: 25px;
}
.button {
    background-color: #333;
    border: none;
    cursor: pointer;
    text-align: center;
    color: white;
    box-shadow: 0 2px 4px 0 rgb(0 0 0.2), 0 2px 4px 0 rgb(0 0 0.2);
    margin-top: 15px;
    width: 180px;
    height: 30px;
}
.NavigationBar2{
    overflow: hidden;
    background-color: #333;
    position: sticky;
    top: 0;
    box-shadow: 0 1px 1px 0 rgb(0 0 0.2), 0 1px 1px 0 rgb(0 0 0.2);
    text-align: center;
}
.NavigationBar2 li {
    padding-left: 7px;
    padding-right: 7px;
    display: inline-block;
}
.NavigationBar2 ul{
    list-style-type: none;
    overflow: hidden;
}
.NavigationBar2 a{
    float: left;
    display: block;
    font-size: 20px;
    font-weight: bolder;
    color: #f6edd4;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;/*去除链接的下划线*/
}